Sink or tub repair bottom



Feb. 2, 1943. s. GYREENSPAN 2,309,843

SINK OR TUB REPAIR BOTTOM Filed Nov. 26, 1941 2 Sheets-Shegt 1 Feb. 2,1943.

s. GREENSPAN 2,309,843 SINK OR TUB REPAIR BOTTQM Filed NOV. 26, 1941 2Sheets-Sheet 2 fi f a ll II ,I [I I I I l I in N, H

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i I Inventor I iazlfeeizjparz,

. A ttorney Patented Feb. 2, 1943 UNlTED s1" TES PATENT OFFICE 4 Claims.

, The present invention relates to new and useful improvements in repairbottoms for sinks or tubs and has for its primary object to provide, ina manner as hereinafter set forth, a device of this character whichisadapted to be eXpeditiously installed when the original bottom of thesink or tub becomes unfit for further use, thus materially prolongingthe period of usefulness of the fixture.

Other objects of the invention are to provide a repair bottom of theaforementioned character for sinks and tubs which will be comparativelysimple in construction, strong; durable, reliable in use and which maybe manufactured and installed at low cost.

All of the foregoing and still further objects and advantages of theinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views, and wherein Figure 1 is a cross-sectionalview through a portion of a sink equipped with a repair bottomconstructed in accordance with the present invention.

Figure 2 is a fragmentary view in vertical section, taken substantiallyon the line 2-2 of Figure 1.

Figure 3 is a top plan view of the device.

Figure 4 is a view in end elevation thereof.

Figure 5 is a detail view in elevation of the strainer.

Figure 6 is a perspective view of a portion of the resilient gasket.

Referring now to the drawings in detail it will be seen that theembodiment of the invention which has been illustrated comprises a plateof suitable metal. The plate I is shaped to conform to the lower portionof a conventional sink 2 in which said plate is to be mounted.

The plate I has stamped therein a tapered opening 3 for registry withthe usual drain opening 4 in the bottom 5 of the sink 2. A coating ofporcelain is to be provided on the upper surface of the plate I.

Mounted on the edges of the plate I is a resilient rubber gasket 6. Thegasket 6 is of circular cross-section and has formed therein a groove orchannel M for the reception of the marginal portions of the plate I. Asshown to advantage in Figure 1 of the drawings, the resilient gasket 6seals the joint between the plate I and the inclined walls of the sink2.

A layer of waterproof cement or other material 1 is provided between theplate I and the bottom 5 of the sink 2. thickness.

The openings 3 and 4 accommodate an externally threaded strainer 8 whichdepends from the bottom 5 of the sink 2. The strainer 8 includes aconical upper portion 9 which seats in the correspondingly shapedopenings 3 and 4.

A rubber gasket l0 on the strainer 8 is engaged beneath the bottom 5 ofthe sink 2. A securing nut H is threaded on the strainer 8. A metalwasher I2 is provided between the nut I l and the rubber gasket I8.Reference numeral 13 designates a conventional waste trap which isconnected to the strainer 8 in the usual manner.

It will thus be seen that a sink or tub repair bottom has been providedwhich may be expeditiously installed without the necessity of makingmaterial structural alterations in the fixture. The construction andarrangement is such as to positively prevent leakage. When the nut II istightened the strainer 8 pulls the plate I down tightly in the lowerportion of the sink 2, thereby uniformly spreading the Waterproof cementor other material I.

It is believed that the many advantages of a sink or tub repair'bottomconstructed in accordance with the present invention will be readilyunderstood and although a preferred embodiment of the device is asillustrated and described, it is to be understood that changes in thedetails of construction and in the combination and arrangement of partsmay be resorted to which will fall within the scope of the invention asclaimed.

What is claimed is:

l. A repair bottom of the character described comprising a plateengageable in the lower portion of a sink or tub and conforming to theshape thereof, a gasket mounted on and enclosing the edges of the platefor sealing the joint between said plate and the sink or tub, saidgasket being of circular cross-section and having a groove therein forthe reception of the marginal portions of said plate, and means forsecuring the plate in position.

2. A repair bottom of the character described comprising a metallicplate engageable in the lower portion of a sink and conforming to theshape thereof, a layer of Waterproof material between the plate and thebottom of the sink, and a resilient gasket of circular cross-sectionmounted on and enclosing the edges of the plate for sealing the jointbetween said plate and the walls of the sink, said gasket having agroove therein for the reception of the marginal portions of said plate.

This layer may be of any desired 3. A repair bottom of the characterdescribed comprising a metallic plate engageable in the lower portion ofa sink and conforming to the shape thereof, said plate having an openingtherein for registry with an opening in the sink bottom, a layer ofWaterproof cement between the plate and the sink bottom, a resilientgasket enclosing the marginal edges of the plate and engaged with thewalls of the sink for sealing the joint between said plate and saidwalls, a strainer depending from the bottom of the sink and including aconical portion seated in the openings, and a securing nut for the platethreaded on the strainer beneath the bottom of the sink.

4. The combination with a sink including a bottom having a conical wasteopening therein, of a metallic plate engageable in the lower portion ofthe sink and conforming to the shape thereof, said plate having aconical opening therein aligned with the first-named opening, a layer ofWaterproof material between the plate and the sink bottom, a resilientgasket on the edges of the plate for sealing the joint between saidplate and the Walls of the sink, a strainer including a conical portionseated in the openings, a securing nut threaded on said strainer beneaththe bottom of the sink, and a sealing element mounted on the strainerbetween the nut and the sink bottom.

SAUL GREENSPAN.

